linux-kernel - Re: [PATCH 2/2] RAS: Introduce the FRU Memory Poison Manager

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Date: Wed, 14 Feb 2024 09:59:48 -0500
From: Yazen Ghannam <yazen.ghannam@....com>
To: Borislav Petkov <bp@...en8.de>
Cc: yazen.ghannam@....com, tony.luck@...el.com, linux-edac@...r.kernel.org,
 linux-kernel@...r.kernel.org, avadhut.naik@....com, john.allen@....com,
 muralidhara.mk@....com, naveenkrishna.chatradhi@....com,
 sathyapriya.k@....com
Subject: Re: [PATCH 2/2] RAS: Introduce the FRU Memory Poison Manager

On 2/14/2024 6:15 AM, Borislav Petkov wrote:
> On Tue, Feb 13, 2024 at 09:35:16PM -0600, Yazen Ghannam wrote:
>> +static bool has_valid_entries(u64 valid_bits)
>> +{
>> +	if (!(valid_bits & FMP_VALID_LIST_ENTRIES))
>> +		return false;
>> +
>> +	if (!(valid_bits & FMP_VALID_LIST))
>> +		return false;
>> +
>> +	return true;
>> +}
> 
> Rename:
> 
> diff --git a/drivers/ras/amd/fmpm.c b/drivers/ras/amd/fmpm.c
> index 090b60d269e7..3da3f40f1efe 100644
> --- a/drivers/ras/amd/fmpm.c
> +++ b/drivers/ras/amd/fmpm.c
> @@ -221,7 +221,7 @@ static int update_record_on_storage(struct fru_rec *rec)
>   	return ret;
>   }
>   
> -static bool has_valid_entries(struct fru_rec *rec)
> +static bool rec_has_valid_entries(struct fru_rec *rec)
>   {
>   	if (!(rec->fmp.validation_bits & FMP_VALID_LIST_ENTRIES))
>   		return false;
> @@ -286,7 +286,7 @@ static void update_fru_record(struct fru_rec *rec, struct mce *m)
>   	fpd.addr	= m->addr;
>   
>   	/* This is the first entry, so just save it. */
> -	if (!has_valid_entries(rec))
> +	if (!rec_has_valid_entries(rec))
>   		goto save_fpd;
>   
>   	/* Ignore already recorded errors. */
> @@ -397,7 +397,7 @@ static void retire_mem_records(void)
>   	for_each_fru(i, rec) {
>   		fmp = &rec->fmp;
>   
> -		if (!has_valid_entries(rec))
> +		if (!rec_has_valid_entries(rec))
>   			continue;
>   
>   		cpu = get_cpu_from_fru_id(fmp->fru_id);
> 
> ---
> 
> and this one:
> 
> ---
> 
> diff --git a/drivers/ras/amd/fmpm.c b/drivers/ras/amd/fmpm.c
> index 3da3f40f1efe..813cc6a4f435 100644
> --- a/drivers/ras/amd/fmpm.c
> +++ b/drivers/ras/amd/fmpm.c
> @@ -255,12 +255,12 @@ static bool same_fpd(struct cper_fru_poison_desc *old, struct cper_fru_poison_de
>   	return true;
>   }
>   
> -static bool is_dup_fpd(struct fru_rec *rec, struct cper_fru_poison_desc *new)
> +static bool rec_has_fpd(struct fru_rec *rec, struct cper_fru_poison_desc *fpd)
>   {
>   	unsigned int i;
>   
>   	for (i = 0; i < rec->fmp.nr_entries; i++) {
> -		if (same_fpd(get_fpd(rec, i), new)) {
> +		if (same_fpd(get_fpd(rec, i), fpd)) {
>   			pr_debug("Found duplicate record");
>   			return true;
>   		}
> @@ -290,7 +290,7 @@ static void update_fru_record(struct fru_rec *rec, struct mce *m)
>   		goto save_fpd;
>   
>   	/* Ignore already recorded errors. */
> -	if (is_dup_fpd(rec, &fpd))
> +	if (rec_has_fpd(rec, &fpd))
>   		goto out_unlock;
>   
>   	if (rec->fmp.nr_entries >= max_nr_entries) {
> 

Okay.

Thanks,
Yazen